Have some questions about how to achive better handling and stopping power using different springs, upgrading to coilovers, questions on swaybars, bushings, different rotors, pads, ect... Having any steering problems or questions about steering racks, tie rods, tie rod ends, ect... ask these questions here.
yeah i dont know specifically atx/mtx differences but like you said the size of the bearing can be different, and also the location of the hole for the tie rod end. those are the two things i found out when looking at buying some 03+ knuckles from a member here.